Sofia Kenin, 6th in the world, 22 years old and 2020 Australian Open champion, signed an unattractive record at Wimbledon 2021: in her second-round loss to compatriot Madison Brengle 6-2, 6-4, the American achieved the highest percentage of unforced errors in relation to time played.
Kenin made 41 unforced errors in 45 minutes of play, managing to win only 39 points in the whole game. It means 0.91 unforced errors per minute: a record according to what was published by IBM, since the previous one in Wimbledon had been achieved by Tatiana Panova in 2005, of 0.69. The average unforced errors on the WTA circuit is 0.21 per minute.
Wimbledon is the Grand Slam that costs the American the most: while she was champion in Australia, finalist at Roland Garros (2020), round of 16 at the US Open (2020), she barely reached the third round at the All England in 2018 and in 2019.